Looking to put GPS speedo and electronic tach in my 87 Superliner, need to know what size gauges I need to fit in dash holes. Truck is in shop so I can't get to it to measure holes, can anyone help me out? Somebody told me it's 3 3/8" gauges, just wanted to make sure before I order them. Thanks!

Beautiful job, I have a 87 RW753 and my front engine mount crossmember broke do you have any idea where I could find one also need the motor mount bracket since the holes for the rubbers are wallowed out. Any help locating parts would be appreciated.

Don't know if this is the right forum, I need a front engine cross member for a 87 RW753 Superliner with a cat 3406B motor Part #10QL4296, local Mack dealer says not available anymore. Could also use the lower motor mount that bolts to the cross member and the upper mount that bolts to the engine.

Thanks Terry, I found the line that runs into the cab don't know if it's the one to the stop light switch but it only has pressure when foot pedal is applied, spliced a tee in it and ran a line to the application gauge and it seems to work ok.